its a little bit fiddly but not that hard saves time for waiting around for someone to upload comp packs!
use a retail unbanned xbox 360 yours or a friends...
i took out my hard drive, but not sure if this step is necessary..
configure usb stick, connect to live, launch game,
download comp packs to usb stick,
put usb stick in jtag..
copy file to CONTENT folder in hdd1. use xm360 to unlock files.
make a back up of codaw tu7 content folder to swap over if u ever want to go back !!!!!
install tu8 launch game
peace